Difference between revisions of "CDC 55 45"

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Revision as of 11:35, 12 October 2012

55/45 Ar/CO2 and cosmics, prototype horizontal


2000V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day
Pedestal std. dev. of samples 0-99, ch20, over 1 day
2025V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day
Pedestal std. dev. of samples 0-99, ch20, over 1 day


2050V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day
Pedestal std. dev. of samples 0-99, ch20, over 1 day
2100V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day
Pedestal std. dev. of samples 0-99, ch20, over 1 day


55/45 gas, prototype horizontal, 4pedestalsigma (gray) and 5pedestalsigma (blue) hit threshold, fit range 5pedestalsigma+
2000V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (47, 60, 85)
2025V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (49, 65, 98)
2050V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (65, 88, 134)
2100V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (94, 130, 201)


55/45 gas, noise std dev 16.5, hit threshold 5x16.5 = 82.5, fit range 5pedestalsigma+
HV Fit MPV Fit sigma (FWHM/4) Fit FWHM/MPV MPV/sigma 4045/MPV 99% point 97% point 95% point
2000 149 42 3.5 27 60
2025 181 55 1.21 3.3 22 65 86 98
2050 251 77 3.2 16 88
2100 380 120 3.2 11 130